Peace of mind with Sulzer - Paper Technology International 2023 - Paper Technology International 2023 - Flipbook - Page 134

Peace of mind with Sulzer - Paper Technology International 2023

PAPERTECHNOLOGYINTERNATIONAL
Peace of mind with Sulzer - Paper Technology International 2023
Peace of mind with Sulzer
Pekka Salmi, Head Business Development CSS, Business Unit Industry, Sulzer Pumps Finland Oy
INTRODUCTION:
Sulzer manufactured and delivered the first pump as early as the 19th century. Since then, we have been keeping liquids on the
move by an ever-increasing number of various pump and agitator types. In the past decade we increased our product portfolio to cover
high-speed compressors. Together with acquisitions and growth in own our sales, we have delivered altogether well above half a million
machines, and they can be found in every part of the world. Most of them serve tirelessly in continuous duty in the customers’ main
processes. However, to make the best out of them year after year, they need high-quality and timely maintenance.
Although we are currently serving various kinds of process
industries in their most demanding applications, our roots are in
the pulp and paper industry. Our customers continuously drive the
development of the production processes and their reliability. Over
the decades we have had a vast number of projects with pulp and
paper industry customers and with major engineering and process
manufacturing companies, aiming at better energy efficiency, higher
reliability, and ease of maintenance. Thanks to this cooperation
and our own engineering skills, we have developed products that
are a perfect fit for the process applications in pulp and paper mills.
We have also created innovative service concepts and products to
bring equipment availability and reliability to the level desired by the
customer.
Continuous development
demand list for every product development project for a long time. In
pulp and paper applications, the energy cost accounts for well over
90% of a pump’s lifetime costs.
One of the latest additions to our portfolio is the mechanical
seal. With the acquisition of a mechanical seal manufacturer, we got
access to mechanical sealing technology and a great opportunity
to develop our own Sulzer mechanical seal to fit our equipment
perfectly. To begin with, we focused the development work on our
process pump series and then continued with other products like
agitators and multi-stage pumps. Our development work has proven
to be very successful as we now have a very large number of pumps
and agitators running with Sulzer mechanical seals around the
world. Our own mechanical seal allowed us to integrate the seal to
our products in an optimal way, also ensuring its efficient servicing.
Sulzer has been developing pumping solutions for the
process industries for more than 130 years. When purchasing a
Sulzer product, a customer buys into a vast network of expertise
and knowledge available from the moment an agreement is made
through to when the pump retires from action.
Among the major successes we can list the removal of
duplicate stand-by pumps from the processes and changing the
pumping of medium-consistency stock from positive displacement
technology to centrifugal pumps. Since the first commercial
installation of an MC centrifugal pump in 1980 we have developed
two more generations with ever increasing pumping capacity and
energy efficiency. We have also supported a major leap for easier
and faster maintenance by back-pull-out designs and assemblies
with no need for manual adjustment of clearances.
Getting rid of duplicate stand-by pumps was mainly achieved
by better manufacturing materials, including duplex steels and
other highly durable alloys, sturdy product structures with adequate
material thicknesses, and strong components like bearing and
sealing arrangements that handle higher loads than in the past.
We have continued the development towards even more modular
product structures allowing easier and less costly changes to
products as well as cross-utilization of components.
Our medium-consistency centrifugal pump technology cut
the customers’ energy and maintenance bills remarkably. High
hydraulic performance and high energy efficiency have been on our
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Figure 1: Sulzer has an experienced global service network to
help its clients in all their pumping, mixing and aeration needs.

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